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aarch64: vp9itxfm: Don't repeatedly set x9 when nothing overwrites it

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2016-11-22 15:47:17 +02:00
parent 2dbe2aa2c2
commit 2f99117f6f
1 changed files with 15 additions and 11 deletions
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26
libavcodec/aarch64/vp9itxfm_neon.S
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@ -599,9 +599,9 @@ endfunc
// x1 = unused // x1 = unused
// x2 = src // x2 = src
// x3 = slice offset // x3 = slice offset
// x9 = input stride
.macro itxfm16_1d_funcs txfm .macro itxfm16_1d_funcs txfm
function \txfm\()16_1d_8x16_pass1_neon function \txfm\()16_1d_8x16_pass1_neon
mov x9, #32
movi v2.8h, #0 movi v2.8h, #0
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 .irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
load_clear \i, x2, x9 load_clear \i, x2, x9
@ -649,8 +649,8 @@ endfunc
// x1 = dst stride // x1 = dst stride
// x2 = src (temp buffer) // x2 = src (temp buffer)
// x3 = slice offset // x3 = slice offset
// x9 = temp buffer stride
function \txfm\()16_1d_8x16_pass2_neon function \txfm\()16_1d_8x16_pass2_neon
mov x9, #32
.irp i, 16, 17, 18, 19, 20, 21, 22, 23 .irp i, 16, 17, 18, 19, 20, 21, 22, 23
load \i, x2, x9 load \i, x2, x9
.endr .endr
@ -747,6 +747,7 @@ function ff_vp9_\txfm1\()_\txfm2\()_16x16_add_neon, export=1
.ifc \txfm1,idct .ifc \txfm1,idct
ld1 {v0.8h,v1.8h}, [x10] ld1 {v0.8h,v1.8h}, [x10]
.endif .endif
mov x9, #32
.irp i, 0, 8 .irp i, 0, 8
add x0, sp, #(\i*32) add x0, sp, #(\i*32)
@ -882,13 +883,12 @@ endfunc
// x0 = dst (temp buffer) // x0 = dst (temp buffer)
// x1 = unused // x1 = unused
// x2 = src // x2 = src
// x9 = double input stride
// x10 = idct_coeffs // x10 = idct_coeffs
// x11 = idct_coeffs + 32 // x11 = idct_coeffs + 32
function idct32_1d_8x32_pass1_neon function idct32_1d_8x32_pass1_neon
ld1 {v0.8h,v1.8h}, [x10] ld1 {v0.8h,v1.8h}, [x10]
// Double stride of the input, since we only read every other line
mov x9, #128
movi v4.8h, #0 movi v4.8h, #0
// v16 = IN(0), v17 = IN(2) ... v31 = IN(30) // v16 = IN(0), v17 = IN(2) ... v31 = IN(30)
@ -987,12 +987,13 @@ endfunc
// x0 = dst // x0 = dst
// x1 = dst stride // x1 = dst stride
// x2 = src (temp buffer) // x2 = src (temp buffer)
// x7 = negative double temp buffer stride
// x9 = double temp buffer stride
// x10 = idct_coeffs // x10 = idct_coeffs
// x11 = idct_coeffs + 32 // x11 = idct_coeffs + 32
function idct32_1d_8x32_pass2_neon function idct32_1d_8x32_pass2_neon
ld1 {v0.8h,v1.8h}, [x10] ld1 {v0.8h,v1.8h}, [x10]
mov x9, #128
// v16 = IN(0), v17 = IN(2) ... v31 = IN(30) // v16 = IN(0), v17 = IN(2) ... v31 = IN(30)
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 .irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x2], x9 ld1 {v\i\().8h}, [x2], x9
@ -1001,7 +1002,6 @@ function idct32_1d_8x32_pass2_neon
idct16 idct16
mov x9, #128
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 .irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
st1 {v\i\().8h}, [x2], x9 st1 {v\i\().8h}, [x2], x9
.endr .endr
@ -1018,11 +1018,10 @@ function idct32_1d_8x32_pass2_neon
idct32_odd idct32_odd
mov x9, #128
.macro load_acc_store a, b, c, d, neg=0 .macro load_acc_store a, b, c, d, neg=0
.if \neg == 0
ld1 {v4.8h}, [x2], x9 ld1 {v4.8h}, [x2], x9
ld1 {v5.8h}, [x2], x9 ld1 {v5.8h}, [x2], x9
.if \neg == 0
add v4.8h, v4.8h, v\a\().8h add v4.8h, v4.8h, v\a\().8h
ld1 {v6.8h}, [x2], x9 ld1 {v6.8h}, [x2], x9
add v5.8h, v5.8h, v\b\().8h add v5.8h, v5.8h, v\b\().8h
@ -1030,10 +1029,12 @@ function idct32_1d_8x32_pass2_neon
add v6.8h, v6.8h, v\c\().8h add v6.8h, v6.8h, v\c\().8h
add v7.8h, v7.8h, v\d\().8h add v7.8h, v7.8h, v\d\().8h
.else .else
ld1 {v4.8h}, [x2], x7
ld1 {v5.8h}, [x2], x7
sub v4.8h, v4.8h, v\a\().8h sub v4.8h, v4.8h, v\a\().8h
ld1 {v6.8h}, [x2], x9 ld1 {v6.8h}, [x2], x7
sub v5.8h, v5.8h, v\b\().8h sub v5.8h, v5.8h, v\b\().8h
ld1 {v7.8h}, [x2], x9 ld1 {v7.8h}, [x2], x7
sub v6.8h, v6.8h, v\c\().8h sub v6.8h, v6.8h, v\c\().8h
sub v7.8h, v7.8h, v\d\().8h sub v7.8h, v7.8h, v\d\().8h
.endif .endif
@ -1064,7 +1065,6 @@ function idct32_1d_8x32_pass2_neon
load_acc_store 23, 22, 21, 20 load_acc_store 23, 22, 21, 20
load_acc_store 19, 18, 17, 16 load_acc_store 19, 18, 17, 16
sub x2, x2, x9 sub x2, x2, x9
neg x9, x9
load_acc_store 16, 17, 18, 19, 1 load_acc_store 16, 17, 18, 19, 1
load_acc_store 20, 21, 22, 23, 1 load_acc_store 20, 21, 22, 23, 1
load_acc_store 24, 25, 26, 27, 1 load_acc_store 24, 25, 26, 27, 1
@ -1093,6 +1093,10 @@ function ff_vp9_idct_idct_32x32_add_neon, export=1
mov x5, x1 mov x5, x1
mov x6, x2 mov x6, x2
// Double stride of the input, since we only read every other line
mov x9, #128
neg x7, x9
.irp i, 0, 8, 16, 24 .irp i, 0, 8, 16, 24
add x0, sp, #(\i*64) add x0, sp, #(\i*64)
add x2, x6, #(\i*2) add x2, x6, #(\i*2)